Critical
Security advisory
When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a library, this only affects applications that load models or dictionaries from untrusted sources. The versions 1.5.0 to 1.5.3, 1.6.0, 1.7.0 to 1.7.2, 1.8.0 to 1.8.1 of Apache OpenNLP are affected.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-12620
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:47 UTC · Revision 1
Source evidence
When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a library, this only affects applications that load models or dictionaries from untrusted sources. The versions 1.5.0 to 1.5.3, 1.6.0, 1.7.0 to 1.7.2, 1.8.0 to 1.8.1 of Apache OpenNLP are affected.
osv:CVE-2017-12620
Complete source record
{
"id": "b047c02a1ccee9f098cd8db44e7fae7b18eded0036ed19ed5ba4d6177a1f3912",
"url": "https://osv.dev/vulnerability/CVE-2017-12620",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-12620",
"summary": "When loading models or dictionaries that contain XML it is possible to perform an XXE attack, since Apache OpenNLP is a library, this only affects applications that load models or dictionaries from untrusted sources. The versions 1.5.0 to 1.5.3, 1.6.0, 1.7.0 to 1.7.2, 1.8.0 to 1.8.1 of Apache OpenNLP are affected.",
"evidence": "osv:CVE-2017-12620",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2017-12620",
"aliases": [
"CVE-2017-12620",
"GHSA-h22x-hm8g-rxpg"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/opennlp",
"type": "GIT",
"events": [
{
"introduced": "378b77e3494ecfed282807aa6608ee8bf2d1e331"
},
{
"last_affected": "0afb487dd29489736cfb8ab4a5458fdae9cab474"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:opennlp:1.6.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.6.0"
},
{
"last_affected": "1.6.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:opennlp:1.7.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.7.0"
},
{
"last_affected": "1.7.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:opennlp:1.7.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.7.1"
},
{
"last_affected": "1.7.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:opennlp:1.7.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.7.2"
},
{
"last_affected": "1.7.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:opennlp:1.8.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.8.0"
},
{
"last_affected": "1.8.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:opennlp:1.8.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.8.1"
},
{
"last_affected": "1.8.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.6.0",
"1.7.0",
"1.7.1",
"1.7.2",
"1.8.0",
"1.8.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12620.json"
}
}
],
"modified": "2026-10-24T10:30:44.533204909Z",
"provider": "osv",
"references": [],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:apache:opennlp:1.5.0:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:opennlp:1.5.1:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:opennlp:1.5.2:*:*:*:*:*:*:*",
"cpe:2.3:a:apache:opennlp:1.5.3:*:*:*:*:*:*:*"
],
"vendor_product": "apache:opennlp",
"extracted_events": [
{
"range": [
{
"introduced": "1.5.0"
},
{
"last_affected": "1.5.0"
},
{
"introduced": "1.5.1"
},
{
"last_affected": "1.5.1"
},
{
"introduced": "1.5.2"
},
{
"last_affected": "1.5.2"
},
{
"introduced": "1.5.3"
},
{
"last_affected": "1.5.3"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-12620",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 435912,
"published_at": "2017-10-03T01:29:01.233+00:00"
}